package com.ed.mapper;

import com.ed.domain.ChatConversation;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Select;

/**
* @author 32727
* @description 针对表【chat_conversation】的数据库操作Mapper
* @createDate 2025-06-29 17:00:19
* @Entity com.ed.domain.ChatConversation
*/
public interface IChatConversationMapper extends BaseMapper<ChatConversation> {
	
	@Select("select count(distinct user_id) from chat_conversation")
	long countUserIdDistinct();
	
}




